Monitor issue. please help

Asuraka

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Reposting from another thread.

To make a long story short, I purchased an NBA Jam arcade today and had to use a friends truck to move it. The machine was covered with a tarp, however during the move it began to rain and some water managed to get inside.

Upon arrival to my house, I opened the back and didn't see any water at first glance. So...we fired it on and it played flawlessly for about 3-4 minutes, then the screen went black. Music and sounds still worked perfect, just no picture.

After closer examination, I realized there was some water around the wires coming from the monitor. So a few questions.

1) Could this small amount of water kill the monitor entirely?

2) Could the water have caused a short that just requires time to dry out? If so, how long should I wait before plugging it back in and turning it on?

I'm clearly not an expert on these, but I know a few things. It just seems odd that the monitor worked perfectly for about 3-4 mins before turning off.

Any advice is welcome, I just hope I don't need to buy a new monitor.
 
Water+electronics=bad.....
Did you test the fuse on that thing? Might be a simple fix? Hard telling but I'd make sure it is 100% dry before firing it up again.
 
Here are some pics. I put a DMM on all the visible fuses and those checked out fine. Now I'm not sure exactly what "neck glow" is, so I can't really diagnose that. What should I check other than fuses? Also, there are some things on the monitor board that could possibly be hiding fuses but I didn't want to take the board out and apart to check. Any tips?

photo3.jpg

arcade.jpg

arcadepic4.jpg

arcadepic.jpg
 
So, I've established there is no neck glow. What's the best/worst case scenarios?
 
Ok, I guess my problem is knowing where exactly to apply the DMM to determine if it is getting power. Maybe if there was a diagram so I could see what I should be looking for.

I know these are some really novice questions, but this is my first crack at working on these, so I really appreciate your help Tom.
 
You should have two wire connector that goes from the power supply to the monitor. This is the power. Set your DMM to AC to measure the 120v that should be present. On this connector you can use either probe to test the voltage (Red on one side and Black on the other side). If you can determine that you are getting power, then you know it is a monitor problem and go from there. I will try and get you as far as I can, but I also hope some of the experts will chime in. Try and post the specifics of your monitor. It looks like a Sharp Image (but what model). I'm not familiar with those, but will try and find some info.

Edit: Here are a couple of trouble shooting flow charts.

http://arcarc.xmission.com/PDF_Monitors/Sharp Image 239ds Trouble.pdf

http://arcarc.xmission.com/PDF_Monitors/Sharp Image 327 Trouble.pdf
 
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Ok so I checked the power supply to the monitor with the DMM and it checked out fine at ~120v. Now I take it that it is a monitor issue. As far as the exact model number of the Sharp Image monitor, I can't really tell. I know the monitor was installed in 2002, if that helps any. Sounds like I may have to call a repair technician to help further diagnose.

Any further help though would really be appreciated. And, once again, thanks for your input Tom.
 
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